Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Schedule of summarizes stock option activities) (Details)

v3.20.2
Stockholders' Equity (Schedule of summarizes stock option activities) (Details) - Stock Options [Member] - USD ($)
$ / shares in Units, $ in Millions
9 Months Ended 12 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Options rollforward    
Stock Options, Outstanding, Number, Beginning Balance 1,241,675  
Options forfeited (100,000)  
Options, Outstanding, Number, Ending Balance 1,141,675 1,241,675
Options vested and exercisable 606,514  
Weighted Average Exercise Price    
Weighted Average Exercise Price, Beginning $ 5.73  
Options forfeited 5.73  
Weighted Average Exercise Price, Ending 5.73 $ 5.73
Options vested and exercisable $ 5.73  
Weighted Average Remaining Contractual Life, Options outstanding (in years) 6 years 6 months 21 days 7 years 3 months 21 days
Weighted Average Remaining Contractual Life, Options vested and exercisable (in years) 6 years 6 months 21 days  
Unrecognized share-based compensation $ 0.2  
Unrecognized compensation recognition period 10 months 24 days